Common questions

What is the name of a 10 digit number?

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What is the name of a 10 digit number?

Billion
The place value of the 10th digit is called a ‘Billion’ in the international place value system and an ‘Arab’ in the Indian number system. The smallest ten digit number is written as 1 followed by 9 zeros, that is, 1000000000. How to Write Numbers up to 10-Digits?

How do I validate a 10 digit mobile number?

test(phoneNumber)) { if(phoneNumber. length==10){ var validate = true; } else { alert(‘Please put 10 digit mobile number’); var validate = false; } } else { alert(‘Not a valid number’); var validate = false; } if(validate){ //number is equal to 10 digit or number is not string enter code here… }

How do you write numbers in regex?

To match any number from 0 to 9 we use \d in regex. It will match any single digit number from 0 to 9. \d means [0-9] or match any number from 0 to 9. Instead of writing 0123456789 the shorthand version is [0-9] where [] is used for character range.

How do I check if a number is regular expression?

regex. Pattern. matches() method. This method matches the regular expression for the phone number and the given input phone number and returns true if they match and false otherwise.

What is a 10 digit mobile number?

What is 10-digit dialing? Ten-digit dialing simply means that instead of dialing 7-digits of a telephone number, you will need to dial all 10-digits of the number in order to complete a local call. In other words, you will need to start including the area code when you dial a local call.

How many 10 digit numbers are there?

Well there a lot of 10-digit numbers . The first place can’t have the face value 0,so only 9 number can be put in it. The remaining 9 places can have 10 in each place. So there are 9*10^9 = 9,000,000,000 10-Digit numbers.

How do I validate a phone number?

Mobile Number validation criteria:

  1. The first digit should contain number between 7 to 9.
  2. The rest 9 digit can contain any number between 0 to 9.
  3. The mobile number can have 11 digits also by including 0 at the starting.
  4. The mobile number can be of 12 digits also by including 91 at the starting.

Why do I have to dial 10 digits?

(CNN) Callers in parts of 35 states and one US territory now have to dial 10 digits to make a local phone call, as the US prepares to implement 988 as the three-digit number to quickly reach the National Suicide Prevention Lifeline. Local calls dialed with seven digits may not connect on or after Sunday.

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