Q: Is 39 a 2- digit number?

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Neither 39 nor 27272 is prime. 39 can be divided by 3 and 27272 can be divided by 2. They both have at least one factor besides 1 and the number themselves. They are composite. The digit in 39 that is prime is 3. The digit in 27272 that is prime is 7.

A 5-digit combination can be obtained as:five 1-digit numbers from 1-9,three 1-digit numbers from 1-9 and one 2-digit number from 10-39, orone 1-digit number from 1-9 and two 2-digit numbers from 10-39.There are 9C5 = 126 of the first kind,9C3*30C1 = 84*30 = 2520 of the second, and 9C1*30C2 = 9*435 = 3915 of the third.All together, there are 126 + 2520 + 3915 = 6561 5-digit combinations.

2 digit number

0

The units digit of 159*445*7762*39 is the units digit of the product of the units digits of the four numbers, that is, the units digit of 9*5*2*9 Since there is a 5 and a 2 in that, the units digit is 0.

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Neither 39 nor 27272 is prime. 39 can be divided by 3 and 27272 can be divided by 2. They both have at least one factor besides 1 and the number themselves. They are composite. The digit in 39 that is prime is 3. The digit in 27272 that is prime is 7.

one hundred undecillion

A 5-digit combination can be obtained as:five 1-digit numbers from 1-9,three 1-digit numbers from 1-9 and one 2-digit number from 10-39, orone 1-digit number from 1-9 and two 2-digit numbers from 10-39.There are 9C5 = 126 of the first kind,9C3*30C1 = 84*30 = 2520 of the second, and 9C1*30C2 = 9*435 = 3915 of the third.All together, there are 126 + 2520 + 3915 = 6561 5-digit combinations.

How many four digit combinations can be made from the number nine? Example, 1+1+2+5=9.

No. When adding the smallest 2 digit number (= 10) to the smallest 2 digit number (again, 10) the result is a 2 digit number (10 + 10 = 20). When adding the largest 2 digit number (= 99) to the largest 2 digit number (again, 99) the result is a 3 digit number (99 + 99 = 198). As you can see, you'll either get a 2 or 3 digit number, but never a 4 digit number.

2 digit number

0

product means multiplication. so a 2 digit number multiplied by a 4 digit number. 80 x 6250 = 500,000 80 can be your 2 digit number 6250 can be your 4 digit number

The units digit of 159*445*7762*39 is the units digit of the product of the units digits of the four numbers, that is, the units digit of 9*5*2*9 Since there is a 5 and a 2 in that, the units digit is 0.

10 is the smallest 2 digit number.

Because -99 is a two digit number and it is smaller.10 is the smallest positive 2-digit number.Because -99 is a two digit number and it is smaller.10 is the smallest positive 2-digit number.Because -99 is a two digit number and it is smaller.10 is the smallest positive 2-digit number.Because -99 is a two digit number and it is smaller.10 is the smallest positive 2-digit number.

3 x 13 = 39