4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 128, 129, 130, 132, 133, 134, 135, 136, 138, 140, 141, 142, 143, 144, 145, 146, 147, 148, 150, 152, 153, 154, 155, 156, 158, 159, 160, 161, 162, 164, 165, 166, 168, 169, 170, 171, 172, 174, 175, 176, 177, 178, 180, 182, 183, 184, 185, 186, 187, 188, 189, 190, 192, 194, 195, 196, 198, 200
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Look up a table of prime numbers, that shows prime numbers at least up to 200. All the integers that are not on the list are composite numbers - except for the number 1, which is considered neither prime nor composite.
12 and 100
Well, isn't that a happy little math problem we have here? To find the percent decrease from 1200 to 900, we first need to calculate the difference between the two numbers, which is 300. Then, we divide this difference by the original number (1200) and multiply by 100 to get the percentage. So, the percent decrease is 25%. Just remember, mistakes are just happy accidents in the world of numbers!
The numbers 1103, 1109, 1117, 1123, 1129, 1151, 1153, 1163, 1171, 1181, 1187 and 1193 are prime.
8% off 1200 = 1200 - (0.08 x 1200) = 1200 -96 = 1104
1% of 1200 = 1% * 1200 = 0.01 * 1200 = 12