Q: What are the prime factors of the number 276,742,116?

 A: 2, 3, 7, 17, 61, 353

Why are those the prime factors of the number 276,742,116?

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 276,742,116

276,742,116
Factor Arrows
2138,371,058
Factor Arrows
269,185,529
Factor Arrows
323,061,843
Factor Arrows
37,687,281
Factor Arrows
32,562,427
Factor Arrows
7366,061
Factor Arrows
1721,533
Factor Arrows
61353

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, 3, 7, 17, 61, 353

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 7 x 17 x 61 x 353 = 276,742,116

This can also be written as 22 x 33 x 71 x 171 x 611 x 3531 = 276,742,116

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


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