To find all the divisors of the number 846,264:
- 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 846,264:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
846,264 = 23 × 3 × 37 × 953
846,264 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 = (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 846,264
- 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
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
3 × 3 =
24
prime factor =
37
composite factor = 2 × 37 =
74
composite factor = 3 × 37 =
111
composite factor = 2
2 × 37 =
148
composite factor = 2 × 3 × 37 =
222
composite factor = 2
3 × 37 =
296
composite factor = 2
2 × 3 × 37 =
444
composite factor = 2
3 × 3 × 37 =
888
This list continues below...
... This list continues from above
prime factor =
953
composite factor = 2 × 953 =
1,906
composite factor = 3 × 953 =
2,859
composite factor = 2
2 × 953 =
3,812
composite factor = 2 × 3 × 953 =
5,718
composite factor = 2
3 × 953 =
7,624
composite factor = 2
2 × 3 × 953 =
11,436
composite factor = 2
3 × 3 × 953 =
22,872
composite factor = 37 × 953 =
35,261
composite factor = 2 × 37 × 953 =
70,522
composite factor = 3 × 37 × 953 =
105,783
composite factor = 2
2 × 37 × 953 =
141,044
composite factor = 2 × 3 × 37 × 953 =
211,566
composite factor = 2
3 × 37 × 953 =
282,088
composite factor = 2
2 × 3 × 37 × 953 =
423,132
composite factor = 2
3 × 3 × 37 × 953 =
846,264
32 factors (divisors)
What times what is 846,264?
What number multiplied by what number equals 846,264?
All the combinations of any two natural numbers whose product equals 846,264.
1 × 846,264 = 846,264
2 × 423,132 = 846,264
3 × 282,088 = 846,264
4 × 211,566 = 846,264
6 × 141,044 = 846,264
8 × 105,783 = 846,264
12 × 70,522 = 846,264
24 × 35,261 = 846,264
37 × 22,872 = 846,264
74 × 11,436 = 846,264
111 × 7,624 = 846,264
148 × 5,718 = 846,264
222 × 3,812 = 846,264
296 × 2,859 = 846,264
444 × 1,906 = 846,264
888 × 953 = 846,264
16 unique multiplications The final answer:
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