To find all the divisors of the number 424,560:
- 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 424,560:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
424,560 = 24 × 3 × 5 × 29 × 61
424,560 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 × 2 = 80
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 424,560
- 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
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 2
3 × 3 =
24
prime factor =
29
composite factor = 2 × 3 × 5 =
30
composite factor = 2
3 × 5 =
40
composite factor = 2
4 × 3 =
48
composite factor = 2 × 29 =
58
composite factor = 2
2 × 3 × 5 =
60
prime factor =
61
composite factor = 2
4 × 5 =
80
composite factor = 3 × 29 =
87
composite factor = 2
2 × 29 =
116
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2 × 61 =
122
composite factor = 5 × 29 =
145
composite factor = 2 × 3 × 29 =
174
composite factor = 3 × 61 =
183
composite factor = 2
3 × 29 =
232
composite factor = 2
4 × 3 × 5 =
240
composite factor = 2
2 × 61 =
244
composite factor = 2 × 5 × 29 =
290
composite factor = 5 × 61 =
305
composite factor = 2
2 × 3 × 29 =
348
composite factor = 2 × 3 × 61 =
366
composite factor = 3 × 5 × 29 =
435
composite factor = 2
4 × 29 =
464
composite factor = 2
3 × 61 =
488
composite factor = 2
2 × 5 × 29 =
580
composite factor = 2 × 5 × 61 =
610
This list continues below...
... This list continues from above
composite factor = 2
3 × 3 × 29 =
696
composite factor = 2
2 × 3 × 61 =
732
composite factor = 2 × 3 × 5 × 29 =
870
composite factor = 3 × 5 × 61 =
915
composite factor = 2
4 × 61 =
976
composite factor = 2
3 × 5 × 29 =
1,160
composite factor = 2
2 × 5 × 61 =
1,220
composite factor = 2
4 × 3 × 29 =
1,392
composite factor = 2
3 × 3 × 61 =
1,464
composite factor = 2
2 × 3 × 5 × 29 =
1,740
composite factor = 29 × 61 =
1,769
composite factor = 2 × 3 × 5 × 61 =
1,830
composite factor = 2
4 × 5 × 29 =
2,320
composite factor = 2
3 × 5 × 61 =
2,440
composite factor = 2
4 × 3 × 61 =
2,928
composite factor = 2
3 × 3 × 5 × 29 =
3,480
composite factor = 2 × 29 × 61 =
3,538
composite factor = 2
2 × 3 × 5 × 61 =
3,660
composite factor = 2
4 × 5 × 61 =
4,880
composite factor = 3 × 29 × 61 =
5,307
composite factor = 2
4 × 3 × 5 × 29 =
6,960
composite factor = 2
2 × 29 × 61 =
7,076
composite factor = 2
3 × 3 × 5 × 61 =
7,320
composite factor = 5 × 29 × 61 =
8,845
composite factor = 2 × 3 × 29 × 61 =
10,614
composite factor = 2
3 × 29 × 61 =
14,152
composite factor = 2
4 × 3 × 5 × 61 =
14,640
composite factor = 2 × 5 × 29 × 61 =
17,690
composite factor = 2
2 × 3 × 29 × 61 =
21,228
composite factor = 3 × 5 × 29 × 61 =
26,535
composite factor = 2
4 × 29 × 61 =
28,304
composite factor = 2
2 × 5 × 29 × 61 =
35,380
composite factor = 2
3 × 3 × 29 × 61 =
42,456
composite factor = 2 × 3 × 5 × 29 × 61 =
53,070
composite factor = 2
3 × 5 × 29 × 61 =
70,760
composite factor = 2
4 × 3 × 29 × 61 =
84,912
composite factor = 2
2 × 3 × 5 × 29 × 61 =
106,140
composite factor = 2
4 × 5 × 29 × 61 =
141,520
composite factor = 2
3 × 3 × 5 × 29 × 61 =
212,280
composite factor = 2
4 × 3 × 5 × 29 × 61 =
424,560
80 factors (divisors)
What times what is 424,560?
What number multiplied by what number equals 424,560?
All the combinations of any two natural numbers whose product equals 424,560.
1 × 424,560 = 424,560
2 × 212,280 = 424,560
3 × 141,520 = 424,560
4 × 106,140 = 424,560
5 × 84,912 = 424,560
6 × 70,760 = 424,560
8 × 53,070 = 424,560
10 × 42,456 = 424,560
12 × 35,380 = 424,560
15 × 28,304 = 424,560
16 × 26,535 = 424,560
20 × 21,228 = 424,560
24 × 17,690 = 424,560
29 × 14,640 = 424,560
30 × 14,152 = 424,560
40 × 10,614 = 424,560
48 × 8,845 = 424,560
58 × 7,320 = 424,560
60 × 7,076 = 424,560
61 × 6,960 = 424,560
80 × 5,307 = 424,560
87 × 4,880 = 424,560
116 × 3,660 = 424,560
120 × 3,538 = 424,560
122 × 3,480 = 424,560
145 × 2,928 = 424,560
174 × 2,440 = 424,560
183 × 2,320 = 424,560
232 × 1,830 = 424,560
240 × 1,769 = 424,560
244 × 1,740 = 424,560
290 × 1,464 = 424,560
305 × 1,392 = 424,560
348 × 1,220 = 424,560
366 × 1,160 = 424,560
435 × 976 = 424,560
464 × 915 = 424,560
488 × 870 = 424,560
580 × 732 = 424,560
610 × 696 = 424,560
40 unique multiplications The final answer:
(scroll down)