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No, 315 is not a Prime number. It is called a composite number. A prime number is a number that is only divisible by one and itself. For example, the number 11 is a prime number since only 11 and 1 go into 11 evenly. 315 is divisible by other numbers (ex: it is divisible by 5)

Q: Is 315 a prime number

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The prime factors of 315 are 3, 3, 5, and 7.

As a product of its prime factors: 3*3*5*7 = 315

3 x 3 x 5 x 7 = 315 The prime factors of 315 are 3, 5, and 7.

32 x 5 x 7 = 315

3 x 3 x 5 x 7 = 315

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315*3 = 945 does.

315 = 3 x 3 x 5 x 7

As 315 is ending with a 5 it can be divided by 5 315/5=63 As 6+3=9 then it can be divided by 9 63/9=7 7 is a prime number Then 315 = 32 x 5 x 7

The prime factors of 315 are 3, 3, 5, and 7.

Since 277 is a prime number, the proper fraction 277/315 is already expressed in its simplest form.

As a product of its prime factors: 3*3*5*7 = 315

3 x 3 x 5 x 7 = 315 The prime factors of 315 are 3, 5, and 7.

The prime factorization of 315 is 3 * 3 * 5 * 7.

32*5*7 = 315

105, 210, 315, 420, 525

Prime numbers have only two factors, one and itself. The number 315 is a compositenumber because it has more factors than 1 and itself. You can find the factors of a number by starting with 1 and going on through the numbers until all the facors of a number are found. Like this: 1 X 315 2 will not divide evenly into 315, so is not a factor. No even numbers are factors of 315. 3 X 105 5 X 63 7 X 45 9 X 35 15 X 21 Listed in order, the factors of 315 are 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315.

Use a factor tree. 315 105,3 35,3,3 7,5,3,3