Q: What are the prime factors of the number 354,155,098?

 A: 2, 11, 19, 31, 151, 181

Why are those the prime factors of the number 354,155,098?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 354,155,098

354,155,098
Factor Arrows
2177,077,549
Factor Arrows
1116,097,959
Factor Arrows
19847,261
Factor Arrows
3127,331
Factor Arrows
151181

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 11, 19, 31, 151, 181

We can check our work by multiplying all of the prime factors together: 2 x 11 x 19 x 31 x 151 x 181 = 354,155,098

This can also be written as 21 x 111 x 191 x 311 x 1511 x 1811 = 354,155,098

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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