A triangle number has the form n(n+1)2 for some positive integer n.
then when you substitute n=44 then it is 990 which is largest triangular number before hundred.
990
The largest prime number less than 1000 is 997.The largest prime number no less than 1000 is currently 257,885,161-1
It is 999.
1000 ÷ 8 = 125 → largest less than 1000 divisible by 8 is 124 x 8 = 992
Start with 1000 and work back, rejecting any composites that you find.
Pick out the largest number, and check whether it is less than the sum of the other two numbers. If it is less, then you can. If it is greater or equal, then you can't.
To find the number that is 1000 less than 47,561,389, simply subtract 1000 from it. This calculation gives you 47,560,389. Therefore, the number is 47,560,389.
1000 more is 577233 1000 less is 575233
312 = 961
9797 is the largest prime number less than 100.
67 will be the largest prime number less than 70.
1000-3=997