To find all the divisors of the number 360,774:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 360,774:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
360,774 = 2 × 34 × 17 × 131
360,774 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (4 + 1) × (1 + 1) × (1 + 1) = 2 × 5 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 360,774
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
prime factor =
17
composite factor = 2 × 3
2 =
18
composite factor = 3
3 =
27
composite factor = 2 × 17 =
34
composite factor = 3 × 17 =
51
composite factor = 2 × 3
3 =
54
composite factor = 3
4 =
81
composite factor = 2 × 3 × 17 =
102
prime factor =
131
composite factor = 3
2 × 17 =
153
composite factor = 2 × 3
4 =
162
composite factor = 2 × 131 =
262
composite factor = 2 × 3
2 × 17 =
306
composite factor = 3 × 131 =
393
composite factor = 3
3 × 17 =
459
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 131 =
786
composite factor = 2 × 3
3 × 17 =
918
composite factor = 3
2 × 131 =
1,179
composite factor = 3
4 × 17 =
1,377
composite factor = 17 × 131 =
2,227
composite factor = 2 × 3
2 × 131 =
2,358
composite factor = 2 × 3
4 × 17 =
2,754
composite factor = 3
3 × 131 =
3,537
composite factor = 2 × 17 × 131 =
4,454
composite factor = 3 × 17 × 131 =
6,681
composite factor = 2 × 3
3 × 131 =
7,074
composite factor = 3
4 × 131 =
10,611
composite factor = 2 × 3 × 17 × 131 =
13,362
composite factor = 3
2 × 17 × 131 =
20,043
composite factor = 2 × 3
4 × 131 =
21,222
composite factor = 2 × 3
2 × 17 × 131 =
40,086
composite factor = 3
3 × 17 × 131 =
60,129
composite factor = 2 × 3
3 × 17 × 131 =
120,258
composite factor = 3
4 × 17 × 131 =
180,387
composite factor = 2 × 3
4 × 17 × 131 =
360,774
40 factors (divisors)
What times what is 360,774?
What number multiplied by what number equals 360,774?
All the combinations of any two natural numbers whose product equals 360,774.
1 × 360,774 = 360,774
2 × 180,387 = 360,774
3 × 120,258 = 360,774
6 × 60,129 = 360,774
9 × 40,086 = 360,774
17 × 21,222 = 360,774
18 × 20,043 = 360,774
27 × 13,362 = 360,774
34 × 10,611 = 360,774
51 × 7,074 = 360,774
54 × 6,681 = 360,774
81 × 4,454 = 360,774
102 × 3,537 = 360,774
131 × 2,754 = 360,774
153 × 2,358 = 360,774
162 × 2,227 = 360,774
262 × 1,377 = 360,774
306 × 1,179 = 360,774
393 × 918 = 360,774
459 × 786 = 360,774
20 unique multiplications The final answer:
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