To find all the divisors of the number 437,880:
- 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 437,880:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
437,880 = 23 × 3 × 5 × 41 × 89
437,880 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) × (1 + 1) = 4 × 2 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 437,880
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2
2 × 5 =
20
composite factor = 2
3 × 3 =
24
composite factor = 2 × 3 × 5 =
30
composite factor = 2
3 × 5 =
40
prime factor =
41
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 41 =
82
prime factor =
89
composite factor = 2
3 × 3 × 5 =
120
composite factor = 3 × 41 =
123
composite factor = 2
2 × 41 =
164
composite factor = 2 × 89 =
178
composite factor = 5 × 41 =
205
composite factor = 2 × 3 × 41 =
246
composite factor = 3 × 89 =
267
composite factor = 2
3 × 41 =
328
composite factor = 2
2 × 89 =
356
composite factor = 2 × 5 × 41 =
410
composite factor = 5 × 89 =
445
composite factor = 2
2 × 3 × 41 =
492
composite factor = 2 × 3 × 89 =
534
composite factor = 3 × 5 × 41 =
615
This list continues below...
... This list continues from above
composite factor = 2
3 × 89 =
712
composite factor = 2
2 × 5 × 41 =
820
composite factor = 2 × 5 × 89 =
890
composite factor = 2
3 × 3 × 41 =
984
composite factor = 2
2 × 3 × 89 =
1,068
composite factor = 2 × 3 × 5 × 41 =
1,230
composite factor = 3 × 5 × 89 =
1,335
composite factor = 2
3 × 5 × 41 =
1,640
composite factor = 2
2 × 5 × 89 =
1,780
composite factor = 2
3 × 3 × 89 =
2,136
composite factor = 2
2 × 3 × 5 × 41 =
2,460
composite factor = 2 × 3 × 5 × 89 =
2,670
composite factor = 2
3 × 5 × 89 =
3,560
composite factor = 41 × 89 =
3,649
composite factor = 2
3 × 3 × 5 × 41 =
4,920
composite factor = 2
2 × 3 × 5 × 89 =
5,340
composite factor = 2 × 41 × 89 =
7,298
composite factor = 2
3 × 3 × 5 × 89 =
10,680
composite factor = 3 × 41 × 89 =
10,947
composite factor = 2
2 × 41 × 89 =
14,596
composite factor = 5 × 41 × 89 =
18,245
composite factor = 2 × 3 × 41 × 89 =
21,894
composite factor = 2
3 × 41 × 89 =
29,192
composite factor = 2 × 5 × 41 × 89 =
36,490
composite factor = 2
2 × 3 × 41 × 89 =
43,788
composite factor = 3 × 5 × 41 × 89 =
54,735
composite factor = 2
2 × 5 × 41 × 89 =
72,980
composite factor = 2
3 × 3 × 41 × 89 =
87,576
composite factor = 2 × 3 × 5 × 41 × 89 =
109,470
composite factor = 2
3 × 5 × 41 × 89 =
145,960
composite factor = 2
2 × 3 × 5 × 41 × 89 =
218,940
composite factor = 2
3 × 3 × 5 × 41 × 89 =
437,880
64 factors (divisors)
What times what is 437,880?
What number multiplied by what number equals 437,880?
All the combinations of any two natural numbers whose product equals 437,880.
1 × 437,880 = 437,880
2 × 218,940 = 437,880
3 × 145,960 = 437,880
4 × 109,470 = 437,880
5 × 87,576 = 437,880
6 × 72,980 = 437,880
8 × 54,735 = 437,880
10 × 43,788 = 437,880
12 × 36,490 = 437,880
15 × 29,192 = 437,880
20 × 21,894 = 437,880
24 × 18,245 = 437,880
30 × 14,596 = 437,880
40 × 10,947 = 437,880
41 × 10,680 = 437,880
60 × 7,298 = 437,880
82 × 5,340 = 437,880
89 × 4,920 = 437,880
120 × 3,649 = 437,880
123 × 3,560 = 437,880
164 × 2,670 = 437,880
178 × 2,460 = 437,880
205 × 2,136 = 437,880
246 × 1,780 = 437,880
267 × 1,640 = 437,880
328 × 1,335 = 437,880
356 × 1,230 = 437,880
410 × 1,068 = 437,880
445 × 984 = 437,880
492 × 890 = 437,880
534 × 820 = 437,880
615 × 712 = 437,880
32 unique multiplications The final answer:
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